Cultivator



(No Model.)

P. 8: T. O. BORNMAN.

GULTIVATOR.

Patented Feb. 8, 1898.

WITNESSES 1 A TTORN E co. Pump-Lima. WASHINGTON, D. c.

UNITED STATES PATENT :OFFICE.

FREDRIOK HUFF BORNMAN AND THOMAS OOLLINSWORTH BORNMAN, OF

SUMMIT, MISSISSIPPI.

' CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 598,849, dated February8, 1898. Application filedJuly9,.189'7. Serial No. 644.008. woman.)

T0 at whom it may concern:

Be it known that We, FREDRIOK HUFF BORN- MAN and THOMAS OoLLINsWoRTHBORNMAN, of Summit, in the county of Pike and State of Mississippi, haveinvented a new and useful Improvement in Cultivators, of which thefollowing is a full,clear,and exact description.

Our invention relates to an improvement in cultivators or side harrows;and the object of the invention is to provide a means whereby the angle,pitch, and spaces or distances of all the blades can be simultanouslyadjusted and in a manner tosecure complete arrangement and exactness inrelative position, no matter to what extent the adjustment is carried,it being possible to retain the equalizing cross-bars, to which theshanks of the blades are attached, transversely to the beam or at anydesired angle to the same, it being also possible to effect anadjustment of the blades in a speedy and convenient manner.

Another object of the invention'is to so construct the implement that amaximum of strength and rigidity will be obtained, combined withlightness.

Another object of the invention is to provide a means whereby any formof blade, whether it be a turning-plow orahalf-shovel, may beexpeditiously and conveniently secured t0 the shanks or stocks and givenany inclination necessary, the attachment .of the blades to the shanksor stocks being effected through the medium of a shoe and a singlefastening-bolt.

Another object of the invention is to so effect the'attachment between ashank and a blade that'there will be absolute rigidity and the absenceof a tendency toward turning on the part of the blade.

The invention consists in the novel construction and combination of theseveral .parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of the im-.

proved implement, showing the equalizing cross-bars to which the bladeshanks or stocks are applied as at a right angle to the beam.

Figs. 1 and 3.

Fig. 2 is a transverse section through the beam and through the shanksconnected therewith. Fig. 3 is a bottom plan view of a portion of thebeam and the equalizing crossbars, showing the latter as having adiagonal position on the beam. Fig. 4 is a vertical section through thefoot of a shank or stock and a vertical section through a blade and theattaching medium for the blade. Fig. 5 6c is a detail perspective viewof one of the shanks or stocks and blade attached thereto, and Fig. 6 isa horizontal section taken substantially on the line 6 6 of Fig. 5.

The beam A may be of any approved construction, and the ordinary handlesB are secured to the same. In connection with the beam two equalizingcross-bars 10 and 11 are placed in parallel order at the bottom portionof the beam, being pivotally attached thereto at their centers by boltsdesignated, respectively, as 10 and 11*. Two parallel trussbraces 12 and13 are employed, one in connection with each of the equalizingcross-bars. These braces extend from the ends of the cross-bars upwardover the top of the beam, being pivoted to the beam by the aforesaidbolts 10 and 11, each carrying a nut 14 at either the top or the bottomor at both ends. Links 15 connect the ends of the equalizing 8ocross-bars, as shown in Figs. 1, 2, and 3, and at the ends of theforward equalizing crossbar 10 the extremities of a segmental bar 16 arepivotally attached through the medium of bolts 17, which pass throughthe forward equalizing-bar, through the forward ends of the links 15,and the extremities of the forward truss-bar 12. The segmental orhorizontally-arched bar 16 extends in a forwardly direction and movesbetween a-guide 18 and the bottom of the beam A, as illustrated in Theshanks or stocks 19 are of peculiar construction, their forward ends 19being twisted so as "to stand horizontally or laterally, and thereby theforward ends of the shanks or stocks may be brought squarely and firmlyagainst the under face of the forward equalizing cross-bar 10, beingattached thereto by the end bolts 17 and corresponding intermediatebolts 17 The attachment be tween the shanks or stocks 19 and the rearequalizing cross-bar 11 is of a peculiar nature,

IOO

the attachment being shown best in Fig. 2, in which it will be observedthat clip-bolts 20 are loosely passed through the rear equalizlng-bar,each clip-bolt terminatingat its lower end in a hook which passes arounda portion of the shank of a stock 19, and while the clip bolts are freeto turn in the rear equalizing cross-bar the shanks are held in properrelation to said bar by means of nuts 21, loeated at the upper ends ofthe said clip-bolts, thereby imparting to the shanks or stocks a sw1velconnection with the rear equalizing cross-bars. The clip-bolts 20 arealso employed for connecting the ends of the rear equalizing cross-barswith the links and the truss-braces 13. The lower ends of the shanks orstocks 19 are preferably slightly enlarged, and the forward face of thelower end of each shank or stock is adapted to receive a blade ofsuitable construction.

lVhen'a turn blade or share 26 is employed, or any blade or share thatis to be given an lnclination is to be used, a shoe 22 is employed whichis more or less thick at its outer side edge and quite thin at its innerside edge. Each shoe is thus given an inclined rear and forward face andeach shoe is provided with a lug 23 at each side, which lugs engage withthe side faces of the shank or stock to which the shoe 1s to be applied,and, furthermore, each shoe on its upper face is provided with aforwardly-extending rib 25 at its upper edge. The blade or share 26 isplaced against the forward inclined face of the shoe, the upper rib 25thereof extending over the top of the blade or share,as shown in Figs.4, 5, and 6, and a single bolt 28, provided with a suitable nut, ispassed through the share or blade and through the shoe and lower portionof the shank or stock carrying the blade, as illustrated particularly 1nFig. 4. Thus it will be observed that although only one bolt need bemanipulated to remove or attach a share the share when attached will beeffectually prevented from havlng lateral or vertical movement and maybe given any desiredinclination. Furthermore, the shoe may be inclinedto a greater or less extent in a transverse direction, or its front orits back face, or both, may be straight.

It is obvious that by turning the equalizing cross-bars on their pivotsall of the shanks or stocks will be simultaneously moved and thedistance between them will be accurately preserved. In this manner theblades may be held at a right angle to the beam or may be placeddiagonally to a greater or to a less extent. It will be observed thatthe swivel connection between the rear equalizing-bar and the shanks orstocks and the pivoted connection between said shanks or stocks and theforward cross-bar positively admits of the adjustment of the bladesabove set forth.

At the outer side face of the blade or share 26 a lug 29 is formed,engaging with the outer side face of the shoe in connection with whichthe blade or share is employed. This lug 29 serves to preserve therigidity of the blade or .share on the shank or stock.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. The combination with a beam, of equalizingcross-bars pivoted to the under side of the beam, truss-bars pivoted toequalizingbars near the ends, the said truss-bars being extended overthe beam and pivoted on the bolts passing through the equalizing-barsand the beam, a curved bar connecting at its ends with the forwardequalizing-bar, a locking device for said curved bar and share-stockshaving connection with the eqaalizing-bars.

2. The combination, with a shank or stock, of a shoe having side lugsarranged for engagement with the side faces of the shank or stock and anupper rib on its outer face, a share engaging with the outer face of theshoe, the rib of the shoe engaging the upper end of the share, and abolt connecting the shoe, the stock or shank and the share, for thepurpose set forth.

3. The combination, with a stock or shank, of a shoe having its frontand rear faces transversely inclined, the said shoe being provided withside lugs for engagement with the side faces of the shank, and a ribextending beyond its front face at the top, a share or blade placed inengagement with the forward inclined face of the shoe, the upper portionof the shank or blade being in contact with the upper rib of the shoe,and a bolt passing through the said blade or share, through the shoe andthrough the stock or shank, for the purpose described.

FREDR-ICK HUFF BORNMAN. THOMAS OOLLINSWOR'IH BORNMAN.

WVitnesses:

E. S. ATKINSON, W. B. MIXON.

